Polyamide-amine modified sodium alginate gel ball for removing heavy metal ions in water and preparation method of polyamide-amine modified sodium alginate gel ball

A kind of technology of heavy metal ion, sodium alginate

Pending Publication Date: 2022-01-21
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the preparation method step in this patent is more, and the process is comparatively complicated

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  • Polyamide-amine modified sodium alginate gel ball for removing heavy metal ions in water and preparation method of polyamide-amine modified sodium alginate gel ball
  • Polyamide-amine modified sodium alginate gel ball for removing heavy metal ions in water and preparation method of polyamide-amine modified sodium alginate gel ball

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Preparation of sodium alginate gel balls. A certain mass of sodium alginate powder was dissolved in deionized water to prepare a sodium alginate solution with a mass fraction of 2%, and ultrasonicated for 10 minutes to remove air bubbles in the sodium alginate solution to obtain a uniform sodium alginate solution. Weigh a certain amount of calcium chloride and dissolve it in deionized water to form a calcium chloride solution with a mass fraction of 5%. Stir the calcium chloride solution continuously and use a 3ml dropper to drop the sodium alginate solution into the calcium chloride drop by drop The solution was stirred for 24h. The product was washed with a large amount of deionized water to remove unreacted substances remaining on the surface of the product to obtain sodium alginate gel balls, which were stored in deionized water for later use.

[0021] (2) Preparation of polyamide-amine modified sodium alginate gel balls. Weigh a certain amount of third-genera...

Embodiment 2

[0023] (1) Preparation of sodium alginate gel balls. A certain mass of sodium alginate powder was dissolved in deionized water to prepare a sodium alginate solution with a mass fraction of 2%, and ultrasonicated for 15 minutes to remove air bubbles in the sodium alginate solution to obtain a uniform sodium alginate solution. Weigh a certain mass of calcium chloride and dissolve it in deionized water to prepare a calcium chloride solution with a mass fraction of 1%. Stir the calcium chloride solution continuously and use a 3ml dropper to drop the sodium alginate solution into the calcium chloride drop by drop The solution was stirred for 24h. The product was washed with a large amount of deionized water to remove unreacted substances remaining on the surface of the product to obtain sodium alginate gel balls, which were stored in deionized water for later use.

[0024] (2) Preparation of polyamide-amine modified sodium alginate gel balls. Weigh a certain amount of third-gener...

Embodiment 3

[0026] (1) Preparation of sodium alginate gel balls. A certain mass of sodium alginate powder was dissolved in deionized water to prepare a sodium alginate solution with a mass fraction of 2%, and ultrasonicated for 20 minutes to remove air bubbles in the sodium alginate solution to obtain a uniform sodium alginate solution. Weigh a certain mass of calcium chloride and dissolve it in deionized water to prepare a calcium chloride solution with a mass fraction of 10%. Stir the calcium chloride solution continuously and use a 3ml dropper to drop the sodium alginate solution into the calcium chloride drop by drop Solution, stirred for 30h. The product was washed with a large amount of deionized water to remove unreacted substances remaining on the surface of the product to obtain sodium alginate gel balls, which were stored in deionized water for later use.

[0027](2) Preparation of polyamide-amine modified sodium alginate gel balls. Weigh a certain amount of third-generation p...

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Abstract

The invention discloses a polyamide-amine modified sodium alginate gel ball for removing heavy metal ions in water and a preparation method of the polyamide-amine modified sodium alginate gel ball, and belongs to the technical field of sewage treatment. The method comprises the following steps: firstly, preparing a sodium alginate gel ball by adopting an ionic cross-linking method, and then introducing third-generation polyamide-amine to the surface of the sodium alginate gel ball by taking glutaraldehyde as a cross-linking agent. The obtained polyamide-amine modified sodium alginate gel ball has the advantages of high adsorption capacity, environment friendliness, no toxicity, no harm and the like, and can play a role in adsorption and removal of various heavy metal ions.

Description

technical field [0001] The invention relates to a polyamide-amine modified sodium alginate gel ball for removing heavy metal ions in water and a preparation method thereof, specifically a method for preparing an adsorption material by using sodium alginate and polyamide-amine, and belongs to the technical field of sewage treatment . Background technique [0002] Water resources play a vital role in the survival and development of human society, and fresh water resources are especially precious. With the continuous development of light and heavy industries in the world, the discharge of industrial pollutants is increasing day by day, and a large amount of untreated or treated sewage that has not reached the standard is discharged into the natural environment, causing serious harm to the natural environment. As a result, the problem of sewage treatment has gradually become a big problem that needs to be solved urgently, which has aroused widespread concern of the whole societ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/26B01J20/30C02F1/28C02F101/20
CPCB01J20/24B01J20/267C02F1/285C02F2101/20
Inventor 孙赫宇战江高源赵义平
Owner TIANJIN POLYTECHNIC UNIV
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